MESON Chess Problem Database

Problem Display
PID: 244460 (1KN1nB2/1P2Pp2/BNRpkr2/1n2b3/3pQp2/2p5/8/8 w - - 0 1)

Eerkes, Allard Pieter

Tijdschrift vd KNSB, 1941

1KN1nB2/1P2Pp2/BNRpkr2/1n2b3/3pQp2/2p5/8/8

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa7
      • 2.Bc4#
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Qd5#
      • 1...Sbxd6
        • 2.Bc4#
      • 1...Sexd6
        • 2.e8Q#
        • 2.e8R#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rg6
        • 2.Qf5#
      • 1...Rh6
        • 2.Qf5#
      • 1...Sbc7
        • 2.Sxe8#
      • 1...Sec7
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • S(d);OGATE::B(B)
  • Actual
    • S(H);P_SPINS(H),XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • S(d);OGATE,P_SPINS(d),XS(H)::B(B)
      • S(j);OGATE,P_SPINS(j),XS(H)::P=Q
      • R(h);N_GUARD::QAB1(A),XR(h)
      • R(h);N_GUARD::QAB1(A)
      • S(d);N_PINS(H)::R(D)+S(H),XS(j)
      • S(j);N_PINS(H)::R(D)+S(H),XS(d)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).